+1


I'm about 6ft and I had exactly the same problem. On a long and / or high speed trip I not only suffered with noise (yes I've got ear plugs) but eventually the amount of movement in my helmet/head generated by the turbulence gave me blurred vision as well.
First step was to change the seat for a lower one but that didn't fix it.
I tried the TT extender and while it made a difference it wasn't as good as I wanted. btw, I've still got that if you want to try / buy.
I ended up with the standard GSA screen and a set of Tobinators bought secondhand off here. These allow a little more air up the back of the screen which (as far as I can tell - I'm not an expert) reduces the low pressure area behind the screen and thus reduces the turbulence
Now have no problems with turbulence and the screen is high enough to keep most of the rain off too.
I agree with those that have suggested lowering the screen that this is a solution to the turbulence but it also increases the amount of rain / spray / crap / flies that get onto your visor.
Before you buy see if there's someone on here in your area with a screen / extender / ??? that you could try / borrow. Different things work best for different people. No idea why but there we are.
Good luck whatever you choose.
Dave